<template>
  <div class="article">
      <!-- 导航栏 -->
      <van-nav-bar
          fixed
          left-arrow
          @click-left="$router.back()"
          title="文章详情"
          ></van-nav-bar>

      <!--loading-->
      <div class="loading" v-if=" loading">
          <van-loading class="inner" type="spinner" color="#1989fa" />
      </div>

      <!-- 文章详情 -->
      <div class="detail" v-else>
          <h3 class="title">标题</h3>
          <div class="author">
              <van-image
              round width="1rem"
              height="1rem"
              :src="article.aut_photo"
              fit="fill" />
              <div class="text">
                  <p class="name">{{article.aut_name}}</p>
                  <p class="time">{{article.aut_pubdate | fromNow}}</p>
              </div>
              <van-button
              @click="follow"
                  round
                  size="small"
                  type="info"
                  >{{article.is_followed ? '取消关注':'+ 关注'}}</van-button>
          </div>
          <div class="content">
              <div
              v-show=true
              v-html="article.content"></div>
          </div>

          <!--分割线-->
          <van-divider>END</van-divider>

          <!--按钮-->
          <div class="btns">
              <van-button round size="small" hairline type="primary" plain
              :icon="article.attitude===1 ? 'good-job' : 'good-job-o'"
              @click="like"
              >
                  {{article.attitude===1?'取消点赞':'点赞'}}
              </van-button>

              <van-button round size="small" hairline type="danger" plain
              :icon="article.attitude===0? 'delete' : 'delete-o'"
              @click='dislike'
              >
                {{article.attitude===0?'取消不喜欢':'不喜欢'}}
              </van-button>
          </div>
          <Common></Common>
      </div>
  </div>
</template>
<script>
import Common from './common'
import {
  followUser, getArtilceDetail, unFollowUser, deleteLike, addLike, deleteDisLike, addDisLike
} from '@/api/articleDetail'
import { mapState } from 'vuex'
export default {
  name: 'Article',
  data() {
    return {
      article: {},
      loading: true
    }
  },

  computed: {
    ...mapState('user', ['token']),
    artId() {
      console.log(this.$route)
      return this.$route.params.id
    }
  },
  methods: {
    async follow() {
      if (!this.token.token) {
        this.$router.push({
          path: '/login?',
          query: {
            flag: true,
            back: this.$route.fullPath
          }
        })
        return this.$toast('请先登录')
      }
      if (this.article.is_followed) {
        await unFollowUser(this.article.aut_id)
      } else {
        await followUser(this.article.aut_id)
      }
      this.$toast('操作成功')
      this.article.is_followed = !this.article.is_followed
    },
    async like() {
      if (!this.token.token) {
        this.$router.push({
          path: '/login?',
          query: {
            flag: true,
            back: this.$route.fullPath
          }
        })
        return this.$toast('请先登录')
      }
      if (this.article.attitude === 1) {
        await deleteLike(this.article.aut_id)
      } else {
        await addLike(this.article.aut_id)
      }
      this.$toast.success('操作成功')
      this.article.attitude = this.article.attitude === 1 ? -1 : 1
    },
    async dislike() {
      if (!this.token.token) {
        this.$router.push({
          path: '/login?',
          query: {
            flag: true,
            back: this.$route.fullPath
          }
        })
        return this.$toast('请先登录')
      }
      if (this.article.attitude === 0) {
        await deleteDisLike(this.article.aut_id)
      } else {
        await addDisLike(this.article.aut_id)
      }
      this.$toast.success('操作成功')
      this.article.attitude = this.article.attitude === 0 ? -1 : 0
    }
  },
  async created() {
    const res = await getArtilceDetail(this.artId)
    this.article = res.data
    console.log(this.article)
    this.loading = false
  },
  components: {
    Common
  }
}
</script>
<style lang="less" scoped>
    .loading {
        height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .article {
        position: absolute;
        left: 0;
        top: 0;
        overflow-y: scroll;
        width: 100%;
        height: 100%;
    }
    .loading {
        padding-top: 100px;
        text-align: center;
    }
    .error {
        padding-top: 100px;
        text-align: center;
    }
    .detail {
        padding: 50px 10px;
        .title {
            font-size: 16px;
        }
        .zan {
            text-align: center;
        }
        .author {
            padding: 10px 0;
            display: flex;
            .text {
                flex: 1;
                padding-left: 10px;
                line-height: 1.3;
                .name {
                    font-size: 14px;
                    margin: 0;
                }
                .time {
                    margin: 0;
                    font-size: 12px;
                    color: #999;
                }
            }
        }
        .content {
            font-size: 14px;
            overflow: hidden;
            white-space: pre-wrap;
            word-break: break-all;
            ::v-deep img {
                max-width: 100%;
                background: #f9f9f9;
            }
        }
        .btns {
            width: 50%;
            margin: 0 auto;
            display: flex;
            justify-content: space-around;
            align-content: center;
        }
    }
</style>
